# Get a vertex o-series connection's install credentials

> GET /connections/vertex-o-series/{conn_id}/credentials

Source: https://docs.trykintsugi.com/reference/2026-07-21/get-a-vertex-o-series-connection-s-install-credentials

GET /connections/vertex-o-series/{conn_id}/credentials

Get a vertex o-series connection's install credentials

Return the Vertex credentials to enter into the external system's Vertex connector (Shopify / NetSuite / Zuora) to complete installation. Allocates a partition from the shared pool on the first call for this connection. Works for a connection of any source that uses Vertex as its tax engine, not only a Vertex O-Series connector connection. Served only from this route; never returned on the generic connection read. Returns 404 if the connection does not exist or belongs to an organization your credential cannot access. Returns 503 if no partition is currently available. A multi-org credential must send an `Organization-Id`, `Connection-Id` or `Entity-Id` selector, or gets a 400.

Category: Connections

Path parameters:
conn_id (string, required) - The unique identifier of the connection.

Response fields:
customerClientId (string, required) - Vertex customer client id.
customerClientSecret (string, required) - Vertex customer client secret.
owningPartyCode (string, required) - Vertex Company Code, always `{organizationId}-{connId}`.

Response statuses: 200, 400, 401, 403, 404, 422, 503

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